i like the second one and the last one. nice blending one the last one and the background and render of the second one are nice. B)
I made all the C4d renders for the first two and i also made the brushes i used in the second sig which added alot i think. #4 is one i just made before i posted it up here so i did some editing of it and got this new pic using a subzero render from cash money: